Home / 108,369.12-149,560.64-62,430.32

Finding the Fourth Proportional to 108,369.12, 149,560.64 and 62,430.32

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Solution

The fourth proportional to 108,369.12, 149,560.64 and 62,430.32 is: 86,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,369.12 : 149,560.64 = 62,430.32 : x
  2. Step 2: Convert to fraction form
    108,369.12/149,560.64 = 62,430.32/x
  3. Step 3: Cross multiply
    108,369.12x = 149,560.64 × 62,430.32
  4. Step 4: Simplify right side
    108,369.12x = 9,337,118,614.60
  5. Step 5: Solve for x
    x = 9,337,118,614.60/108,369.12
  6. Step 6: Final answer
    x = 86,160.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.